[gmx-users] random seed number

[David van der Spoel]

On Fri, 4 Jan 2002, Erik Nordling wrote:

>This is probably a trivial question but since I'm fairly new to this
>field so I ask it anyway. The gen_seed parameter in your files and
>examples are always 173529, I have so far manually changed that number
>whenever I remembered it, but is that necessary, if it is necessary, are
>there any rules regarding which numbers that can be chosen.
Prime numbers. Zero is a bad idea. I sometimes do series of identical runs
with only the random number changed, that gives you very fast different
trajectories.

Groeten, David.
________________________________________________________________________
Dr. David van der Spoel, 	Biomedical center, Dept. of Biochemistry
Husargatan 3, Box 576,  	75123 Uppsala, Sweden
phone:	46 18 471 4205		fax: 46 18 511 755
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://zorn.bmc.uu.se/~spoel
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